Bibliografia
Principal
- Bell, E., Bryman, A., & Harley, B. (2019). Business research methods. Oxford university press. Leedy, P. D., & Ormrod, J. E. (2019). Practical research: Planning and design. Pearson Education. Saunders, M., Lewis, P., & Thornhill, A. (2019). Research methods for business students. Pearson education.: